(Patent No 1248) Insulators for Telegraphic Purposes
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| Collections | ANU School of Cybernetics |
|---|---|
| Title: | (Patent No 1248) Insulators for Telegraphic Purposes |
| Author(s): | Joseph Oppenheimer |
| Publisher: | The Great Seal Patent Office |
| URI: | http://hdl.handle.net/1885/271566 |
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| File | Description | Size | Format | Image |
|---|---|---|---|---|
| Patent No.1248-1878.pdf | 348.47 kB | Adobe PDF |  | |
| Patent No.1248-1878.tif | 50.08 MB | TIFF |  |
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